ND47__25
Powerex, Inc., 173 Pavilion Lane, Youngwood, Pennsylvania 15697 (724) 925-7272
www.pwrx.com
Maximum On-State Forward Voltage Drop
POW-R-BLOK TM
Dual SCR/Diode Isolated Module
250 Amperes / Up to 1600 Volts
Maximum Transient Thermal Impedance
5.00
( Tj = 130 °C )
0.14
(Junction to Case, Per Junction)
0.12
4.00
0.1
3.00
2.00
1.00
0.08
0.06
0.04
0.02
0.00
10
100
1000
10000
0
0.001
0.01
0.1
1
10
100
Instantaneous On-State Current - Itm/Ifm - Amperes
M axim u m O n -S tate P o w e r D issip atio n
Time - t - Seconds
Maximum Allowable Case Temperature
300
250
(S in u so id a l W av efo rm )
90°
120°
180°
130
125
120
(Sinusoidal Waveform)
200
30°
60°
115
110
0 180 360
CONDUCTION ANGLE
150
15°
105
100
15°
30°
100
50
0
180
CONDUCTION ANGLE
360
95
90
85
60°
90°
120°
180°
0
80
0
50
100
150
200
250
300
0
50
100
150
200
250
300
400
A v erag e O n -S tate C u rren t - It / If (av ) - A m p eres
Maximum On-State Power Dissipation
(Rectangular Waveform)
130
Average On-State Current - It / If (av) - Amperes
Maximum Allowable Case Temperature
(Rectangular Waveform)
350
180°
270°
360°
120
300
250
60°
90°
120°
110
0 180 360
CONDUCTION ANGLE
200
150
100
50
15°
30°
0 180 360
CONDUCTION ANGLE
100
90
80
15°
30°
60° 90°
120°
180°
270°
360°
0
0
50
100
150
200
250
300
350
400
450
70
0
100
200
300
400
500
Average On-State Current - It / If (av) - Amperes
Average On-State Current - It / If (av) - Amperes
Revision Date: 05/17/2010
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